For high-duty process applications, the magnetically-coupled push pull (MPP) devices are ideally suited with high torque, high axial stiffness and zero thrust due to vacuum. The magnetically-coupled push pull range provides linear and linear/rotary motion solutions with up to 300mm (12") stroke. Strong magnetic coupling eliminates the use of bellows and dynamic seals, which are vulnerable to failure, providing a robust long-life design.
All the devices in this range provide smooth motion in both directions with zero thrust due to vacuum, unlike bellows-sealed devices. We offer versions that provide: linear motion (with free rotation of the shaft); guided linear motion (no rotation of the shaft); linear and rotary motion (shaft rotation controlled by the thimble). Manual actuation is provided as standard with motorised and pneumatic options available. Pneumatic actuation is ideal for high-duty, two-position applications, such as source or beam shutters.